#include<stdio.h>
#include<unistd.h>
#include<sys/types.h>

int main()
{
	pid_t id =fork();
	if(id == 0)
	{
		//child
		int count=5;
		while(count)
		{
			printf("我是子进程,我正在运行: %d\n",count);
			sleep(1);
			count--;
		}
	}
	else
	{
		while(1)
		{
			printf("我是父进程，我正在运行...\n");
			sleep(1);
		}
	}

	//printf("我是一个进程，pid：%d\n",getpid());

	//int x;
	//scanf("%d",&x);

	//while(1)
	//{
	//	printf("hello Linux!\n");
	//}
	return 0;
}
